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Environmental Issues

Air Pollution: Causes, Effects and Control Practice Questions

20 free Air Pollution: Causes, Effects and Control practice questions for the NCERT Biology, each with the correct answer and a detailed explanation. Open any question below, or take the full set as an interactive quiz.

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All Air Pollution: Causes, Effects and Control questions

20 questions
  1. Q1. Which of the following is the most widely used method to remove particulate matter from the exhaust of a thermal power plant?
  2. Q2. In an electrostatic precipitator, the velocity of air between the collecting plates must be:
  3. Q3. A scrubber is specifically used in industries to remove which of the following gaseous pollutants?
  4. Q4. According to the Central Pollution Control Board (CPCB), particulate size of ________ micro-meters or less in diameter are responsible for causing the greatest…
  5. Q5. Catalytic converters, which are fitted into automobiles for reducing emission of poisonous gases, use which of the following expensive metals as catalysts?
  6. Q6. Why is it advised to use unleaded petrol in vehicles fitted with catalytic converters?
  7. Q7. The Air (Prevention and Control of Pollution) Act was amended in 1987 to include which of the following as an air pollutant?
  8. Q8. Which of the following is a major physiological effect of noise pollution at levels of 150 dB or more?
  9. Q9. In the 1990s, Delhi ranked ________ among the 41 most polluted cities of the world.
  10. Q10. Following the Supreme Court's directive, the entire fleet of public transport (buses) in Delhi was switched from diesel to ________ by the end of 2002.
  11. Q11. Which of the following is a disadvantage associated with the use of CNG as a fuel for public transport?
  12. Q12. The Euro III norms, which were aimed to control vehicular pollution, specified that sulfur be controlled at ________ in diesel and ________ in petrol.
  13. Q13. In India, the Bharat Stage IV (BS IV) emission norms were implemented across the entire country in:
  14. Q14. Which plant part is most affected by high concentrations of sulfur dioxide ($SO_2$) in the atmosphere?
  15. Q15. What is the function of 'Corona' in an electrostatic precipitator?
  16. Q16. Air pollutants affect all living organisms by:
  17. Q17. Which of the following is considered a 'secondary' air pollutant?
  18. Q18. A sound level of ________ is considered the threshold for 'noise' that can cause pain or discomfort.
  19. Q19. Lichens are well-known 'bio-indicators' because they are extremely sensitive to:
  20. Q20. The use of 'green belts' (planting trees along roadsides) helps in controlling air pollution by: